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RADIANT BARRIER
 When
the
sun
heats
a
roof,
it's
primarily the sun's radiant energy that
makes the roof hot. A large portion of this heat travels by conduction
through the roofing materials to the attic side of the roof. The hot
roof material then radiates its gained heat energy into the cooler
attic (some of the roof's heat will radiate in other directions too). A
radiant barrier reduces the radiant heat transfer from the roof to the
attic space.
 Fiberglass re-inforced
(perforated) aluminum foil insulation; Fire retardant; Reflects 95% of
radiation heat Perforated aluminum foil radiant barrier to eliminating
sweating; Use for attics, roof and walls ; Easily stapled into place in
attic on ceiling joists or rafters, sealed with aluminum tape; Adhesion
Good on clean and dry surface; No Discoloration Resistance Excellent
resistance to water, water vapor, oxidation and weathering.
Demonstration
below
 This difference is due to the Power-Save Radiant Barrier's ability to reflect radiant heat away from the insulation!  |